WHAT IS THE ANSWER TO : 85% IS 20 TO WHAT NUMBER

2 answers:

6 0

$85\% \ of \ x=20 \\\\ \frac{85}{100}*x=20 \\\\ \frac{17}{20}*x=20 \\\\ \frac{17}{20}=\frac{20}{x} \\\\ x=\frac{20*20}{17} \\\\ \boxed{x=\frac{400}{17}}$

svetoff [14.1K]3 years ago

6 0

Hey mariamilcayla can you help me im stuck on maths

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Gnom [1K]

Answer:

$x_{1}=\frac{+3+\sqrt{5} }{2}\\\\x_{2}=\frac{+3-\sqrt{5} }{2}$

Step-by-step explanation:

Using:

$x=\frac{-b+-\sqrt{b^{2}-4*a*c} }{2*a}$

we will have two solutions.

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So, a=1 b=-3 c=1

$x_{1}=\frac{+3+\sqrt{-3^{2}-4*1*1} }{2*1}\\\\x_{2}=\frac{+3-\sqrt{-3^{2}-4*1*1} }{2*1}$

We have two solutions:

$x_{1}=\frac{+3+\sqrt{5} }{2}\\\\x_{2}=\frac{+3-\sqrt{5} }{2}$

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3 years ago

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3 years ago

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omeli [17]

Answer:

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Step-by-step explanation:

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3 years ago

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Answer:

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